Cai + Partition D.I.Y Information

[PashaK]

i dont have a sample schematic.

try making one out of cardboard, get it to fit the way you want it.

then trace it onto paper and send it to me

[someonestolecc]

Trace it onto paper you say.

Will do - might take me a week or two tho.

[PashaK]

might not have a week or 2 as ive aplied for a few new jobs and if i get offered any i will no longer be a laser operator...

[tang0]

Was about time i got around to making a CAI box for the car ... and had a couple of hour spare today ...

went upto the local mitre 10 and bought a sheet of 600 x 600 aluminium, this was about twice what i actually needed. They were out of pop rivet guns, so had to use nuts and bolts with spring washers

anyway, roughly measured what i needed, cut out a cardboard box to the rough size, tried it, trimmed it a bit, repeated this a few times, and came up with a good size, transposed this onto the ali sheet, and cut out, the top was just made by roughly cutting out what i needed, then placing it on top of the vertical sheet now in the car, and drew around it with a marker pen, cut it out, then cut lots of small cuts along the edge so it could fold over and bolt upto the ali part easily.

Bent the lip of the top, drilled holes, bolted up, and sprayed with some heat resistant paint, slotted it all in place, and used the headlight mount to bolt it down ..

i cut some fuel hose long its axis and slotted it along the bottom, this is just to stop the ali sheet scratching the inner wheel arch.

The bottom of the vertical part os bent in slightly to avoid the pipe going down into the FMIC from the turbo. As i have an FMIC the pipe that the std intercooler would return to is not there, and so is basically a 2.8" hole to behind the indicators (its s series 2) so i have a nice cool air feed to the inside the box ..

see pics below

www.host32.com/line/cai/DSC01946.JPG

www.host32.com/line/cai/DSC01947.JPG

www.host32.com/line/cai/DSC01949.JPG

www.host32.com/line/cai/DSC01950.JPG

www.host32.com/line/cai/DSC01951.JPG

This last pic is a view from the front nearside, behind the indicators (cameria is in the hole under the indicator) you can see the hole that feeds the cai.

all in all took about 3 hours, will get around to putting a window in the top at some point when i can be arsed.

No idea if its made any difference to performance, but it certainly cant hurt ...

roll on the 550cc inj and pfc tune

[geno8r]

Very tidy. Feel like making some cash Tang0 ?

[tang0]

thanks !

the thing about building them is i'm fairly sure each box will be slightly different due to different positioning of the afm ... mine is totally not a standard position as i made up my own aluminium support brackets for the hks pod ...

[FATAZZ]

i just made cardboard cut-outs of my partition around my air filter,wot material do u thinks the best 2 use?

[PashaK]

im still a laser operator by the way. so send any schematics my way so i can get them cut on the laser.

thx

[Pulp]

Basically it will be a box extending from just under the guard lip on the right covering all the filter and cooler piping, and drop straight to the floor next to cooler piping and will be all polsiehd and look fancy etc aswell as serving its purpose. Everyone who is interested please PM me and tell me, as i have to do these in my free time at work (lunch time, friday arvo's) so i don't want to be wasting time. It will probably work out around $80 each plus shipping? Sound good? Polished alloy, ready to fit... Let me kno, i'll do mine in the next few days n post pics then you can see.

Hi YBSLO4, just wondering how you ended up going with the new box?

Wouldn't mind seeing how it looks and if you think it made things better.

PM me if you like.

Cheers!

[Eug]

original airbox was too restrictive with the panel filter.

installed a pod filter a while ago to my NA it was an improvement, but it was just sitting there and seemed very sluggish due to the heat from the engine.

I then decided to make a heatshield to try and make the most of it.

template was made with cardboard - made about 3-4 of these, continously trial fitting.

transferred the cardboard template onto aluminum sheeting

mounted brackets to hold the sheeting in place

insulation foil on both sides to keep engine heat away from pod.

I have yet to do a temperature check, but after a fairly spirited drive for 20mins, and placing hands on either side of the heatshield - a large difference in temperature was apparent.

This was done on a under ~$30 budget - i took my time in doing it - but can be done in a few hours.

End Result:

[thirtythree-II]

Did you notice much of a difference in performance?

[Eug]

http://www.skylinesaustralia.com/forums/sh...ead.php?t=74355

refer here for more details...

dyno charts show before and after effects and a full write up on what changes i felt

in driveability.

[CONRAD]

Hi Guys,

I currently planning on making a cold air induction system for my 32 gtr.

I envisaged buying a standard air intake snorkel (as my car came without one) feeding that into a cold air box as well as trying to fabricate some sort of wide tubing running into a fiberglass funnel to fit the box through the awkward oval hole shown below:

I can only find R32 gtst snorkels so how do they differ, if at all, and does anyone know if an the gtst snorkel will fit the GTR mounting holes etc?

Also, I’d imagine that cutting sheet metal is a BIG NO NO incase of defects etc, though the hole shown is a tad small, what do you guys think.. and what are other peoples methods of feeding air in without cutting metal or drilling holes??

Help appreciated, cheers.

[Eug]

sounds good.. just be weary of water going in...

[FATAZZ]

how does everyone elese remove the passenger headlight?

those bolts down near the radiator are impossible

[Pulp]

http://www.skylinesaustralia.com/forums/sh...ead.php?t=74355

refer here for more details...

dyno charts show before and after effects and a full write up on what changes i felt

in driveability.

Hi mate,

Just a question, I know you said you used aluminum sheeting, it looks quiet thick though, is that all you used? I'm just getting ideas at the moment.

Cheers!

[Eug]

its an aluminum sheet, then on both sides stuck with a foam layered foil type thing (courtesy of 51jay) - can be picked up @ clark rubber or something similar.

does the job, keeps the hot air out, and limited to the heat shield.

engine bay || foil/foam || aluminum sheet || foam/foil || pod filter

^^^^^layers are pretty much like this ^^^^^

[MearCat]

I've used 2mm Ally but I think the benefit comes not from the aluminium but the foam foil layer.

Eug - to take your example, I have this setup :

engine bay || foil/foam || aluminum sheet || pod filter

^^^^^layers are pretty much like this ^^^^^

without a scond layer or foam/foil and according to my temp gauges, it keeps the intake temp within 2-3 degrees on ambient temp when cruising.

[Pulp]

its an aluminum sheet, then on both sides stuck with a foam layered foil type thing (courtesy of 51jay) - can be picked up @ clark rubber or something similar.

does the job, keeps the hot air out, and limited to the heat shield.

engine bay || foil/foam || aluminum sheet || foam/foil || pod filter

^^^^^layers are pretty much like this ^^^^^

Thanks mate!

I'm in the process now of cutting out a template and getting the right fit.

Thanks again!

[fob2nv]

he he he he